Anyone who expects Google not to track at this point
Is somewhat out of touch with reality. Google tracks you KNOW this. However that tracking can be both good and bad. If his phone showed he was at another location that would have eliminated him as a suspect. I use Google auto for the safety features and yes it does track me. But all that tracking does is provide evidence of my location. That could be bad if I'm near the scene of a crime, but good if I am not.
In short you wear gloves and Tyvek suits to not leave fingerprints or DNA. Today you need to consider your electronic fingerprints as well. Better yet try to stay on the right side of the law.